Universal joint.



PATENTED OCT. 17, 1905. VLADIMIR LORENG & VICTOR LORENG.

UNIVERSAL JOINT.

APPLICATION FILED NOV. 30, 1904.

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a (2 M M w PATENTED OCT. 17, 1905. VLADIMIR LORENU & VICTOR, LORENGUNIVERSAL JOINT.

APPLICATION FILED NOV. 30, 1904.

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UNIVERSAL JOINT...

Specification of Letters Patent.

lratented Oct. 17, 1905.

Application filed o mbe 30, 1904- Serial No. 234,927.

To rtl/ M lt/mt it may (lo/merry Be it known that we, VLADIMIR LORENCand VIo'ron Lonrzno, engineers, residing at Berlin, in the Empire ofGermany, have invented certain new and useful Improvements inUniversal-Joints; and we do hereby declare the following to be a full,clear. and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make .and use thesame.

' This invention relates to a joint in which the whole of thebearing-surfaces can be adjusted in the simplest manner.

The chief feature of the new universal joint consists in utilizing oneand the same ballpin for supporting the ends of the two spindles. Thesespindles or other movable elements surround with their bifurcated endsthe ball-pin in such manner that the two forks are situated in twoplanes at a right angle to each other, this relative position of the twoforks being insured by suitably-shaped ribs on the ball-pin. Theadjustment is effected by making the ribs in question wedge-shaped andseparating at least two of them from the hall-pin, so that by tighteningthe movable ribs the forks can always be pressed against the fixed ribs.

in the accompanying drawings, Figure 1 is theforked end of the onespindlein end view; Fig. 6, the same in perspective view; Fig. 2, an endelevation, and Fig. 7 a side elevation, of one of the detachable ribs;Fig. 3 and Fig. 8, front and side elevations of the ball-pin. Figs. 4.and 9 are end and side elevations of the second detachable rib. Fig. 5and Fig. 10 are an end and a perspective view of the other bifurcatedspindle end. Fig. 11 is the adjusting or set screw. Fig. 12 and Fig. 13are respectively a cross-section and longitudinal section of the jointwhen fitted up on a larger scale. Figs. 1a and 15 show anotherconstruction of the joint in cross and longitudinal sections on a largerscale.

1 1 are the spindles, the ends of which are to be connected by theuniversal joint. The ends of these spindles are p rovided' with forks 22, Figs. 1 and 6 and 5 and 10, which engage with the ball-pin f by meansof their semicircular or more than semicircular surfaces 3. The ball-pinL is provided with ribs 5 5 and 6 6, which insure the planes of the twoforks 2 2 remaining at a right angle to each other.- In the drawings thetwo opposite ribs 5 5 are made in one piece with the ball-pin, the otheropposite ribs 6 6 being separate from the ball-pin and connected to itby means of a screw 7 passing through the ball-pin.

The ribs 6 6 are wedge-shaped and can be brought nearer to each other bymeans of the screw 7 when they penetrate partially in two recesses 8 inthe ball-pin, Fig. 8. These recesses also allow the forks 2 to inclosemore than a half of a circle, so that a pull can be exercised on thejoint, for when the joint is built up the forks are first put on at therecesses 8 and subsequently correspondingly turned so as to come overthe full portion of the ball.

In the joint according to this invention all bearing-surfaces cantherefore be adjusted by means of a single screw, the ribs 6 6, whichare brought nearer to each other by the tightening of the said screw,bein pressed strongly against the corresponding lateral surfaces of theforks of the joint, which are thus forced against the ribs 5 5.

1n the construction shown in Figs.- 1 to 13 the lateral surfaces of theforks 2 2 are turned conically and the ribs of the ball arecorrespondingl y shaped, so that all lateral surfaces occupy radialpositions relatively to the ball. Owing to this, on the one hand, thesurface pressure is smaller-and, on the other hand, the force requiredfor tightening is considerably reduced, so that under the head of thesetscrew 7 can be placed a spring insertion which insures constanttightening in the ease of insignificant wear, so that the tigl'iteningof the screw is required much less frequently. These conicalbearing-surfaces of the joint-forks cnable the joint when tightened totransmit without play any longitudinal pull or push.

If as is desirable in many cases it is necessary to render possiblelongitudinal shifting, the lateral bearing-surfaces of the joint-forksor of one of the joint-forks are made flat instead of conical and thefork made with a half-circular recess with straight branches, as may beseen in Fig. 15, so that the portion of the spindle connected with thefork can slightly move in the longitudinal direction. The wedge actionof the adjusting-ribs 6 6 remains, however, the same, as may be seenfrom Fig. 14:, so that the adjustability of the joint is not affected.

It must be pointed out that thehole for the set-screw 7 in the ball-pinmust be made slightly larger than the diameter of the screw in order toallow for lateral shifting of the screw, which takes place during theadjustment. In many cases it may be desirable to provide the screw '7with safety devices in order to prevent accidental loosening of thescrew.

In Fig. 14 one of the ribs 5 is detachable and is secured to theball-pin by means of a screw 10. By this way the joint is rendered moreresistant against large torsional forces.

The details of the joint can be varied withoutdeparting from the spiritof our invention. Thus, for instance, the supporting-Snrfaces of theball-pin instead of having the shape of a Zone of a sphere can simplyhave a cylindrical surface, or all the four ribs of the ball-pin can bemade separate and secured to the ball-pin by means of special screws.

IVhat we claim is- 1. In a universal joint,the combination,with amovable element having bifurcated ends, of a ball-pin arranged to beembraced by the bifurcated ends and provided with ribs, and means foradjusting said ribs radially of the ballpin.

2. In a universal joint,the combination, with spindles having bifurcatedends, of a ball-pin arranged to be embraced by the bifurcated ends andprovided with ribs adjoining the lateral faces of the spindle ends, andmeans for adjusting the ribs radially of the ball-pin.

3. Inauniversaljoint,thecombination,with spindles having bifurcatedends, of a ball-pin arranged to be embraced by the bifurcated ends andprovided with fixed and movable ribs adjoining the lateral faces of theends, and means for adjusting two oppositely-disposed ribs radially ofthe ball-pin.

I. Inauniversaljoint,the combination,with spindles having bifurcatedends, of a ball-pin arranged to be embraced by the bifurcated ends andprovided with wedge-shaped ribs adjoining the lateral faces of thespindle ends, and means for adjusting said ribs radially of the ballpin.

5. In a universal joint,the combination, with spindles having bifurcatedends, of a ball-pin arranged to be embraced by the bifurcated ends andprovided with fixed and movable wedge-shaped ribs arranged in pairs onopposite sides of the pin, and means for adjusting the movable ribsradially of the ball-pin.

6. In auniversal joint, the combination,with spindles havinginwardly-curved bifurcated ends, of a ball-pin arranged to be embracedby the bifurcated ends and provided with ribs, two oppositely-disposedribs being radially adjustable within recesses formed in the pin.

7. In a universal j0int,the combination,with spindles having bifurcatedends with conical lateral faces, of a ball-pin arranged to be ern bracedby the bifurcated ends and provided with adjustable wedge-shaped ribshavingconical faces adjoining the conical faces of the spindle ends, andmeans for adjusting said ribs radially of the ball-pin.

8. In a universal joint,the combination, with spindles having bifurcatedends, of a ball-pin arranged to be embraced by the bifurcated ends andprovided with oppositely-disposed ribs adjustable radially in recessesformed in the ball pin, a set-screw passing loosely through the ball pinand connecting said ribs, said ball-pin also provided with an integralrib arranged at right angles to the adjustable ribs, and on the oppositeside with a corresponding rib removably secured in fixed relation to theball-pin, all of said ribs arranged to adjoin the lateral faces of thespindle ends.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

VLADIMIR LORENC. VICTOR LORENC. i tnesses: EUGENE HARsAni,

LOUIS VANDORY.

